Habsburg dynastic crisis after the assumption of the throne by Maria Theresa, he invaded Silesia in 1740. The Austrians tried to recover the conquered area, but were defeated at the Battle of Mollwitz and then became preoccupied with the War of the Austrian Succession. The Treaty of Breslau and Treaty of Berlin (1742) gave Prussia the majority of the Silesian territory. Prussia became Poland's only western neighbor and the Prussian advances threatened the (thus far strong) ethnically Polish, often Protestant, Silesian populations with increased Germanization pressures. The Habsburg state had a much better record of tolerating minority cultures than the Hohenzollerns in East Prussia. The first Silesian war was followed by the second (1744–45), terminated by the Treaty of Dresden, and the third (1756–63). Saxony participated in all three, hoping for a territorial connection with the Commonwealth. The Saxon army, allied with Prussia, was destroyed during Frederick's Olomouc campaign in 1742. For the second (when the Electorate was invaded by Prussia) and the third war Saxony switched to supporting the Habsburgs, seeking unsuccessfully to involve Poland during the sejm of 1744. The Treaty of Warsaw (1745) failed to substantially strengthen Augustus' position in the Commonwealth. The Seven Years' War brought a demise of the Saxon army, which attacked by the Prussians capitulated at Pirna in 1756; Saxony found itself under Prussian occupation. Despite the far reaching Prussian and Russian expansionist designs, the Treaty of Hubertusburg preserved the territorial status quo in the area in 1763. While the Saxon defeats precluded a continuation (beyond Augustus III) of the Wettin personal union with the Commonwealth, the disarmed and defenseless Rzeczpospolita was ripe for more definite territorial encroachments on the part of the neighboring powers. The union with Saxony was of beneficial economic and cultural consequences for both participating societies. The Saxons were important in the dissemination of the early Enlightenment intellectual currents in the Commonwealth. Józef Aleksander Jabłonowski, the founder of a scientific society in Leipzig, was one of the Poles active in Saxony. The personal union times were to be remembered as a period of positive Polish-German interactions. Sarmatism era culture Sarmatism and Counter-Reformation In the realm of culture the 1648–1764 period was dominated by the style of Baroque, with the final decades constituting also the early Enlightenment. The middle of the 18th century was a period of transition between the two. Being a part of the nonhomogeneous European Baroque, the